650506165069 has 2 divisors, whose sum is σ = 650506165070. Its totient is φ = 650506165068.

The previous prime is 650506165051. The next prime is 650506165081. The reversal of 650506165069 is 960561605056.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 454898989444 + 195607175625 = 674462^2 + 442275^2 .

It is a cyclic number.

It is not a de Polignac number, because 650506165069 - 2¹⁵ = 650506132301 is a prime.

It is a super-2 number, since 2×650506165069² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650506160069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325253082534 + 325253082535.

It is an arithmetic number, because the mean of its divisors is an integer number (325253082535).

Almost surely, 2^650506165069 is an apocalyptic number.

It is an amenable number.

650506165069 is a deficient number, since it is larger than the sum of its proper divisors (1).

650506165069 is an equidigital number, since it uses as much as digits as its factorization.

650506165069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458000, while the sum is 49.

The spelling of 650506165069 in words is "six hundred fifty billion, five hundred six million, one hundred sixty-five thousand, sixty-nine".